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Caterpillar C9 ACERT Marine Engine

Caterpillar C9 ACERT 8.8-liter diesel engine provides 205 kW for marine propulsion in fishing boats and patrol vessels. Falls under HTS 8408.10.0020 for diesel marine engines in the 149.2-223.8 kW power bracket.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+37.5%40%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8408.90.10Lower: 37.5% vs 40%

If industrial tractor or stationary applications

Same diesel engine base but different end-use shifts from marine to industrial headings.

8901.90.00.00Lower: 37.5% vs 40%

If imported installed in complete pleasure craft

Vessels with installed engines classify under Chapter 89 rather than separate engines.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Submit EPA marine engine certificates and power curve documentation

• Ensure proper labeling of marine-specific adaptations vs. industrial versions

• Avoid common pitfall of declaring with vessel components which triggers vessel classification